How to connect another router to modem/wirless router and turn off DHCP on the modem/wireless router.

Drawn

Reputable
May 11, 2015
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4,510
Hello all,

A friend of mine who owns a coffee shop, of course, offers wifi to his customers. Now he recently decided to replace his six year old router, and when setting up the new router, to his surprise discovered his modem is, in fact, a wireless router as well, and it's been on and running for six years.

So the question is how can we properly set this up to just use the router and disable the wireless in the modem. The modem is down under the counter and wouldn't serve well as a wireless router anyway.

So this new wireless router is attached to a modem that is itself a wireless router, and the modem has its DHCP on. Therefore the new router is being assigned a new ip address every 72 hours (see Network Settings).

You can see in the Network Settings screenshot three devices connected:
Archer C7 is the router
23181422 is, I'm assuming, the 'point of sale' machine to read credit cards.
DELL-6430u is my Dell laptop.

Now I'm no expert, but shouldn't the router and the other device be assigned a static ip address instead and the modem's DHCP turned off? Further, in the Wireless Settings for the modem, shouldn't I disable the 'Primary Wireless Network' and disable the 'Broadcast Primary SSID'?

Lastly, you can see there is no DHCP confilct as the ip addresses are different in the attached router's DHCP Settings

We don't want the router being assigned a new ip address every 4320 minutes (72 hours), do we??

Regards,

 

Drawn

Reputable
May 11, 2015
7
0
4,510
I did some research and decided to go into the modem/wireless router and assign a permanent ip address to the Archer C7 router. I'm thinking that's a good move. The router is now left with a permanent ip address and can go about its business doing its thing. (See Bell New Network Settings) Note, the other two devices listed in the screenshot are merely my phone and laptop at the time...on a six year old wireless network my friend didn't know about. Hilarious.

Now, of course, I could assign a permanent ip address to the 23181422 (point of sale card reader) as well and then set the lease time from 4320 minutes to say, 60 minutes. He could then advertise the modem's wireless network and have now a third wireless network for his customers. It's just broadcasting there serving nothing.

We'll see.